HQRP Car Charger for Garmin StreetPilot C310 C320 C330 C340 C3xx GPS, 12-volt Vehicle Power Adapter + HQRP Coaster HQRP&reg; Replacement Car Charger plus HQRP&reg; Coaster; Input: 12V DC ; Output: DC 13.8V, 2A; Safety Features: High Efficiency and Reliability; Automatic Overload cut-off; Automatic Thermal cut-off; Short circuit and Over Voltage protection; Low Interference & Noise; Compatible with Original 12-volt Vehicle Power Adapter; 1 Year warranty!